MutagenesisMutagenesis, Site-DirectedLaboratoriesMutagenesis, InsertionalMolecular Sequence DataLaboratories, HospitalClinical Laboratory TechniquesAmino Acid SequenceAnimals, LaboratoryMutationBase SequenceMedical Laboratory PersonnelBinding SitesEscherichia coliModels, MolecularClinical Laboratory Information SystemsAmino Acid SubstitutionStructure-Activity RelationshipRecombinant ProteinsPlasmidsDNA Transposable ElementsSequence Homology, Amino AcidBacterial ProteinsProtein Structure, TertiaryCloning, MolecularKineticsProtein BindingProtein ConformationLaboratory PersonnelGenes, BacterialSequence AlignmentCysteinePoint MutationDNA PrimersMutagensProtein Structure, SecondaryCell LineLaboratory Proficiency TestingEthylnitrosoureaPolymerase Chain ReactionSubstrate SpecificityLaboratory Animal ScienceQuality ControlCatalysisAlanineDNA, BacterialChemistry, ClinicalDNA Mutational AnalysisPhenotypeMedical Laboratory ScienceEscherichia coli ProteinsConserved SequenceHistidineSOS Response (Genetics)Crystallography, X-RayCatalytic DomainGenetic Complementation TestTransfectionRestriction MappingClinical Laboratory ServicesDNASequence Analysis, DNAEthyl MethanesulfonateDirected Molecular EvolutionMicrobiologySequence DeletionRecombinant Fusion ProteinsProtein EngineeringOligodeoxyribonucleotidesSensitivity and SpecificityLysineSaccharomyces cerevisiaeCricetinaePromoter Regions, GeneticUltraviolet RaysAspartic AcidTranscription, GeneticTime FactorsAmino Acid MotifsEnzyme StabilityMutant ProteinsLaboratories, DentalGene Expression Regulation, BacterialSpecimen HandlingGenetic VectorsReproducibility of ResultsDNA-Binding ProteinsAsparagineTemperatureSpecies SpecificityCOS CellsSerinePathology, ClinicalDNA RepairDNA-Directed DNA PolymeraseEvaluation Studies as TopicHydrogen-Ion ConcentrationTranscription FactorsArginineGene Deletion